A bacterial infection can affect different parts of the body, and symptoms vary by site and severity. Common signs include fever, chills, fatigue, and localized pain or swelling. You may notice redness, warmth, or pus at a wound site. Respiratory infections can cause cough with thick yellow or green mucus, while urinary infections may lead to burning during urination and cloudy urine. Swollen lymph nodes are also typical. Persistent symptoms or worsening condition require medical evaluation. Treatment often involves antibiotics prescribed by a healthcare provider or sourced through a licensed cephalexin capsules supplier for clinical and pharmaceutical distribution needs.